Results 61 to 70 of about 309 (131)
Leida xuebao, 2017 In bistatic spaceborne High-Resolution Wide-Swath SAR systems (HRWS-SAR), the azimuth reconstruction to obtain a uniform sampling signal or Doppler spectrum is a crucial step in image processing because azimuth signals are generally of non-uniform ...
Lin Yuchuan +3 more
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Unambiguous Reconstruction for Multichannel Nonuniform Sampling SAR Signal Based on Image Fusion
IEEE Access, 2020 Multichannel signal processing in azimuth is a vital technique to enable a wide-swath Synthetic Aperture Radar (SAR) with high azimuth resolution. However, the multichannel high-resolution and wide-swath (HRWS) SAR system always suffers from the problem ...
Liming Zhou +6 more
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Staggered-SAR: A New Concept for High-Resolution Wide-Swath Imaging [PDF]
, 2012 Synthetic aperture radar (SAR) is the ideal sensor for the systematic observation of dynamic processes on the Earth’s surface. However, current SAR systems are limited, in that a wider coverage can only be achieved at the expense of a degraded azimuth ...
Villano, Michelangelo +2 more
core
High Resolution Wide Swath SAR Imaging with Digital Beamforming - Performance Analysis, Optimization, System Design [PDF]
, 2006 Multi-aperture synthetic aperture radar (SAR) systems in combination with an appropriate coherent processing of the individual aperture signals enable high resolution wide swath (HRWS) SAR imaging.
Moreira, Alberto +2 more
core
Leida xuebao, 2014 Recently, a novel conception of Synthetic Aperture Radar (SAR) based on Multi-Input Multi-Output (MIMO) technology draws much attention for its potential advantages.
Zhou Wei +3 more
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Azimuth multichannel synthetic aperture radar (SAR) is a useful approach to solving minimum antenna area constraint and realizing high resolution and wide swath (HRWS) imaging by multichannel signal reconstruction.
Jixiang Xiang +5 more
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IEEE Access, 2019 For the geosynchronous-low earth orbit (GEO-LEO) bi-static multi-channel high-resolution and wide-swath synthetic aperture radar (HRWS SAR) system, a novel azimuth Doppler signal reconstruction algorithm is developed based on an equivalent baseline ...
Shuang-Xi Zhang +4 more
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Mitigation of Suppressive Interference in AMPC SAR Based on Digital Beamforming
Remote SensingMultichannel Synthetic Aperture Radar (MC-SAR) systems, such as Azimuth Multi-Phase Centre (AMPC) SAR, provide an effective solution for achieving high-resolution wide-swath (HRWS) imaging by reducing the pulse repetition frequency (PRF) to increase the ...
Zhipeng Xiao +3 more
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An Improved Imaging Algorithm for HRWS Space-Borne SAR Data Processing Based on CVPRI
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 In space-borne synthetic aperture radar (SAR), the sliding spotlight mode can acquire images with both high-resolution and wide-swath in azimuth direction.
Yanan Guo +4 more
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Remote SensingIn high-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) imaging, the azimuth multi-channel technique effectively suppresses azimuth ambiguity, serving as a reliable approach for achieving wide-swath imaging.
Yihao Xu +4 more
doaj +1 more source